We found a recipe to make Moon Sand on Pinterest. I couldn’t find the original link though. It calls for 8 cups of flour and 1 cup of baby oil. I made up a half batch and sent it outside with the kids and their trays, buckets, and shovels. They made a huge mess, but had so much fun!! When we were done., I cleaned up what was left on the tray and in the bowl and dumped it back in the bag to use later.